//
//  NSMutableArray+Convert.m
//  延展作业
//
//  Created by dllo on 16/7/13.
//  Copyright © 2016年 dllo. All rights reserved.
//

#import "NSMutableArray+Convert.h"

@implementation NSMutableArray (Convert)
- (NSMutableArray *)convert
{
    NSMutableArray *arr1 = [NSMutableArray array];
    for (NSInteger i = 3; i >= 0; i--) {
        NSString *str = [self objectAtIndex:i];
        [arr1 addObject:str];
    }
    return arr1;
}
@end
